Supervisory relay.



No. 705,092. Patented July 22, I902.-

W. KAISLING.

SUPERVISOBY RELAY.

(Application filed Feb. 4, 1901.)

(No Model.)

wmmv 45mm r J 23 fwd r adagw cq UNITED STATES PATENT OFFICE.

WILLIAM KAISLING, OF CHICAGO, ILLINOIS, ASSIGNOR TO KELLOGG SYVITCI-LBOARD AND SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OFILLINOIS.

SUPERVISORY RELAY.

SPECIFICATION forming part of Letters Patent No. 705,092, dated July 22,1902. Application filed February 4, 1901. Serial No. 45,964. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM KAISLING, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Supervisory Relays,(Case No. 16,) of which the following is a full, clear, concise, andexact description, reference being had to the accompanying drawings,form- IO ing a part of this specification.

My invention relates to a supervisory relay more particularly designedfor telephone purposes, although equally applicable to other uses.

The object of my invention is to provide a compact and efficient relay,and more particularly to provide means for mounting the armature of therelay.

I have illustrated my invention in the accompanying drawings, in whichFigure 1 isa longitudinal sectional view of the relay of my invention.Fig. 2 is a view thereof, partially in section. Fig. 3 is an end view ofthe relay. Fig. 4 is an end view of the relay, the capf being in sectionand the armature 0, together with the greater portionofitssupporting-strip c ,beingremoved. Fig. 5 is a detail View of one ofthe relay-contacts and the mounting therefor. Fig. 6is adetail viewshowing the armature and the mounting therefor. Fig. 7 is a detail viewshowing the manner of securing the armature to the suspending-spring. I

Like letters refer to like partsin the several figures.

The relay is surrounded by a shell or of magnetic material, and withinthis shell the core a is mounted, the core having a threaded shank aadapted to pass through an open- 4 ing in the rear of the shell a andadapted to be secured in position by means of a jam-nut a Upon the corea the winding Z) of the relay is mounted, the winding being held betweeninsulating end pieces b The ends of the winding h are connected,respectively, with the leading-in conductors or rods 12 l)", which passfreely through holes Zr I) in the end of the shell Ct.

The armature c is preferably made circu- 5 lar in form and carries atthe center a tapped hole adapted to receive a screw 0, secured inposition by a jam-nut 0 The end of the screw carries a contact-point 0preferably of platinum, which is adapted to serve as one of the contactsof the relay. The armature c is suspended opposite the end of the core aby means of a strip 0 preferably of copper, and adapted to serve as aspring. One end of the strip 0 is secured to the end of the shell a bymeans of the screw 0, and the opposite end of said strip 0 is adapted torest in a saw cut or slot provided in the face of the ar mature 0 nearthe periphery thereof. The end of the strip 0 is bent substantially atright angles for insertion in said saw cut or slot,and after the saidend has been inserted in the saw-cut the circumference of the armaturedirectly over the slot is prick-punched to secure the armature to thestrip. The strip 0 serves to normally maintain the armature a shortdistance from the end of the core, and when the armature is attractedthe same is drawn toward the core to close together the relay-contacts.WVhen the armature is attracted, the metallic circuit is completed fromthe shell-terminal e through the shell and suspension-spring a to thearmature-contact c thence to the back contact (1 and by wire 6 toterminal 0. By this means of suspension the weight of the armature isbalanced, and therefore the only strain to'be exerted by the magnet isagainst the spring copper strip 0 Moreover, this strip serves to make agood electrical contact between the armature and the shell of the relay.

Upon the front insulating-plate b a spring or strip d is secured bymeans of a screw d. The lower end of said strip (Z carries a platinumcontact (Z adapted to be engaged by the relay-contact carried upon thearmature c. The platinum contact (1 carries a shank (Z extending to therear of the strip (Z, said shank being guided in an opening provided inan insulating-block d, inserted in a bore in the end of the core a. Theface of the insulatlug-block (Z rests at a distance from the end of thecore, so that the contact d rests wholly within the end of the core. Aslot (1 is provided at one side of the core to accommodate the passageof the strip (1. An opening is pro- I00 vided through the strip 0supporting the armature, to thereby permit the contact 0 to engage thecontact (1 A leading-in wire or rod 6 is secured to the head Z) andpasses through the end of the shell a, being insulated therefrom bymeans of a bushing c. Said rod 6 is electrically connected with thestrip (.1 by means of a conductor 6 the end of the shell (7., being inelectrical contact therewith. The wires 6 and 0 form the terminals ofthe circuit adapted to be controlled by the relay'cont-acts. For thepurpose of illustration I have shown a battery 0' and a lamp 0" incircuit with the wires c and 0 The circuit may be traced from thebattery through the lamp 9", wire 6, conductor e strip (Z, relay-contact(Z thence, when the armature is attracted, to contact a, armature c,strip 0 to shell a, thence through wire (2 to the opposite pole of thebattery.

Upon the end of the shell Ct is mounted a cover or capf, said coverhaving upon opposite sides the bayonet-channels ff, adapted to engage,respectively, the pins f f carried upon the shell a. The cap f carries ascrew f By turning this screw the same may be caused to engage the headof screw 0 to limit the distance to which the spring may retract thearmature.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. The combination with an electromagnet, of an armature situatedopposite the pole thereof, and a mounting for said armature comprising aspring passing across the inner face of said armature and secured at oneend to the armature and at the opposite end to a suitable support,substantially as described.

2. The combination with an electromagnet, of an armature situatedopposite the pole thereof and adapted to occupy an upright position, ofa mounting for said armature comprising a spring passing across the faceof the armature and secured at one end to the lower edge of saidarmature and to a suitable support at the upper end, substai'itially asdescribed.

23. The combination with an electromagnet and the core thereof, of aninclosing shell of magnetic material, an armature situated opposite theends of said core and shell and a mounting for said armature comprisinga spring passing between the poles of the magnet and the armature andsecured at one end to the edge of said armature and at the other end tothe end of said shell, substantially as described.

at. The combination with an electromagnet, of an armature situatedopposite the pole thereof, and a mounting therefor comprising a springlocated between the pole and the armature and having one end inserted ina slot provided near the edge of the armature and having the other endsecured to a suitable support, substantially as described.

A rod or wire a is mounted upon The combination with an electromagnet,of an armature situated opposite the pole thereof, and a mountingtherefor comprising a spring placed between the pole and armato re andhaving one end inserted in a slot pro vided near the edge of saidarmature the periphery of said armature beingprick-punched in thevicinity of said inserted end to secure the same in position, theopposite end of said spring beingmou nted uponasuitable support,substantially as described.

(3. The combination with an electromagnet, of an armature situatedopposite the pole thereof, a mounting for said armature comprising aspring passing across the face thereof and secured at one end to thearmature and at the opposite end to a suitable support and a pair ofcontacts one carried upon said armature and the other upon the end ofthe core of said electromagnet and adapted to be closed together whenthe armature is attracted, sub stantially as described.

7. The combination with an electromagnet, of an armature situatedopposite the pole thereof, a mounting therefor comprising a springsecured at one end to the armature and at the other end to a suitablesupport, a pair of contacts one carried upon said armature and the otherupon the end of said core, said spring being provided with an opening topermit said contacts to engage when the armature is attracted,substantially as described.

8. The combination with an electromagnet, of an insulating-block mountedupon the end of the core thereof, a contact mounted upon said block, anarmature situated opposite the end of said core, a mounting for saidarmature comprising a spring passing across the face of the armature andsecured at one end to the edge of said armature and at the other end toa suitable support and a contact carried upon said armature and adaptedtoengage the contact on the core when the arma- 1 ture is attracted,substantially as described.

9. The combination with the core of an electromagnet, of a windingmounted on the core, and an insulating-block surrounding the end of saidcore, an insulating-piece in- 1 serted in an opening in the end of saidcore,

a spring secured at one end to said insulatingbloclc and carrying acontact adapted to rest against said insulating-piece, a shell of magnetic material surrounding the winding of 1 said electromagnet, anarmature situated opposite the pole of said electromagnet and a mountingfor said armature comprising a spring secured at one end to the edge ofsaid armature and at the other end to the end of I said shell,substantially as described.

10. The combination with an electromagnet, of an armature situatedopposite the pole thereof, a mounting for said armature comprising astrip of metal located between the pole and armature and serving as aspring and secured at one end to the armature and at the opposite end toa suitable support, a contact carried upon said armature, and anelectrical circuit adapted to include said contact, the metal of saidarmature and said spring, substantially as described.

11. The combination with an electromagnet, comprising a core and aWinding surrounding the same and ashell of magnetic material surroundingsaid Winding, of a contact carried upon the end of said core, anarmature situated opposite the end of said core, amounting therefor,comprising a spring passing across the face of the armature and securedat one end to the armature and at the other end to the end of saidshell, a contact carried upon said armature and adapted to engage thecontact on the end of said core, a leading-in conductor mounted upon andelectrically connected with the rear end of said shell, and threeleading-in conductors passing through and insulated from the end of saidshell, two of the same being connected with opposite ends of themagnetic winding and the third being connected with the contact mountedupon the end of said core, substantially as described.

12. The combination With an electromagnet, of an armature situatedopposite the pole thereof,andamountingfor saidarmature comprising aspring secured to said armature and to a suitable support and containedwholly Within the peripheryof the armature,substantially as described.

13. The combination with an electromagnet and the core thereof,of aninclosing shell therefor, an armature situated opposite the ends of thecore and armature, a mounting for the armature comprising a spring-stripextending across the end of the magnet and between the poles thereof andthe armature, said strip being confined Within the limits of thearmature and shell substantially as described.

14:. The combination with an electromagnet and the core thereof, of aninclosing shell of magnetic material, an armature situated opposite theends of said core and shell and a mounting for said armature comprisinga spring secured at one end to the edge of said armature and at theother end to the end of said shell, substantially as described.

15. The combination with an electromaguet and the core thereof, of aninclosing shell, an armature situated opposite the ends of said core andshell, and means for permanently securing said armature directly to theshell, substantially as described.

16. The combination with an electromagnet, and a core therefor, of aninclosing shell of magnetic material forming a portion of the magneticcircuit of the magnet, an armature situated opposite the ends of saidcore and shell and adapted to be attracted thereby, said armature beingpermanently secured to said shell so as to be carried directly thereby,substantially as described.

17 The combination with an electromagnet and the core thereof, of aninclosing shell, an

armature situated in front of the ends of said I core and shell, aremovable cap fitting upon the end of the shell and adapted to inclosethe end of the same and the armature, said armature being mountedindependently of the cap, whereby the latter is removable Withoutdisturbing the armature in its relation to the shell, substantially asdescribed.

18. The combination with an electromagnet and the core thereof, of aninclosing shell of magnetic material forming a part of the magneticcircuit, an armature situated opposite the ends of said core and shell,and a mounting for said armature adapted to permit it to move bodily ina right line opposite the poles of the magnet, substantially asdescribed.

19. The combination With an electromagnet and a core therefor, of aninclosing shell of magnetic material, an armature situated opposite theends of said core and shell and a mounting for said armature comprisinga spring of non magnetic material passing across the inner face of saidarmature and secured at one end to the armature and at the opposite endto a suitable support, substantially as described.

20. The combination With an electromagnet, of an armature situatedopposite the pole thereof,and a mo untingfor said armature com prising aspring passing across the inner face of said armature and secured at theopposite end to a suitable support, substantially as de scribed.

21. The combination with an electromagnet and the core thereof, of aninclosing shell, an armature situated in front of the ends of said coreand shell, means for mounting said armature directly upon the shell, anda removable cap for closing the end of the shell and inclosing thearmature, said cap being entirely independent and free from thearmature, substantially as described.

22. The combinationwith an electromagnet and the core thereof, of aninclosing shell of magnetic material forming a portion of the magneticcircuit for the magnet, an armature situated opposite the ends of saidcore and shell and adapted to be attracted thereby, said armature beingdirectly carried by the shell, and a removable cap for closing the endof the shell and inclosing said armature, said cap being entirelyindependent and free IIO from the armature,substantially as described.

The combination with an electromagnet and the core thereof, of aninclosing shell, an armature situated in front of the ends of said coreand shell, a removable cap fitting upon the end of the shell and adaptedto inclose the end of the same and the armature, said arma ture beingmounted independently of the cap, whereby the latter is removableWithout disturbing the armature in its relation to the shell, and anadjustable stop for the armature carried by the cap, substantially asdescribed.

EM. The combination with an electromagnet and the core thereof, of aninclosing shell. of

' magnetic material forming a part of the mag- 1 In Witness whereof Ihave hereunto subnetic circuit, an armature situated opposite scribed myname in the presence of two Wltthe ends ofsaid core and shell,aspringqnountnesses.

ing for said armature adapted to permit it to \VILLIAM KAISLING. 5 movebodily in a right line opposite the poles Witnesses:

of the magnet, and a stop for the armature, J OIIN HENRY LEUDI,

substantially as described, I KEMIPSTER B. MILLER.

